141749999 has 8 divisors (see below), whose sum is σ = 146817360. Its totient is φ = 136694656.

The previous prime is 141749981. The next prime is 141750001. The reversal of 141749999 is 999947141.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-141749999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 141749999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141749599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25832 + ... + 30834.

It is an arithmetic number, because the mean of its divisors is an integer number (18352170).

Almost surely, 2^141749999 is an apocalyptic number.

141749999 is a deficient number, since it is larger than the sum of its proper divisors (5067361).

141749999 is an equidigital number, since it uses as much as digits as its factorization.

141749999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6009.

The product of its digits is 734832, while the sum is 53.

The square root of 141749999 is about 11905.8808577946. The cubic root of 141749999 is about 521.4039955069.

The spelling of 141749999 in words is "one hundred forty-one million, seven hundred forty-nine thousand, nine hundred ninety-nine".